<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>404</title>
    <style type="text/css">
        a{
            color:#2B70D3;
        }
        .content{
            position: absolute;
            top: 0;
            left: 0;
            right:0;
            bottom:0px;
            text-align: center;
        }
        .content .img{
            position: relative;
            top: 50%;
            margin-top: -167px;
            overflow: hidden;
        }
    </style>
</head>
<body>
<div class="content">
    <div class="img">
        <img src="/public/img/404.svg" >
        <p style="margin-top:50px;line-height:25px;color:#555;">页面不存在，请刷新或返回<a id="link">首页</a></p>
    </div>
</div>
<script>
    window.onload = function() {
        var cookieStr = document.cookie;
        if (cookieStr.indexOf('loginSuccess=true') === -1) {
            document.querySelector('#link').setAttribute('href', '/login.html');
        } else {
            document.querySelector('#link').setAttribute('href', '/');
        }
    }
</script>
</body>
</html>